Toto CWT486MFG-1#011.6-GPF/0.9-GPF Maris Wall-Hung Toilet and In-Wall Tank System, Cotton Dual-Max flushing system, low consumption Adjustable 15-Inch-19-Inch mounting height PEX supply line with optional Washlet connection Support up to 880lbs Commercial 2-Inch x 6-Inch or optional residential installation with 2-Inch x 4-Inch wall studs with waste outlet kit